IP Library Granted Patent US 12,596,051
Granted Patent B2
US 12,596,051 · App. 18/156,715 · Granted Apr 7, 2026

Auto test circuit using an intensifier

Inventor: James Cook (Houston, TX)
Assignee: FMC Technologies, Inc.
G01M3/2853F16L37/62F16L41/008E21B33/03
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Quick Facts
Patent No.
US 12,596,051
App. No.
18/156,715
Granted
Apr 7, 2026
Kind
B2
Abstract

A method includes providing a hydraulic connector having a hydraulic lock, wherein the hydraulic lock is operated using a hydraulic supply line and a hydraulic outlet line, and connecting the hydraulic connector to a component by activating the hydraulic lock. While the hydraulic lock is activated, a connection between the hydraulic connector and the component is pressure tested by directing a portion of the hydraulic fluid from the hydraulic supply line to a pressure testing system, using an intensifier in the pressure testing system to pressurize the portion of hydraulic fluid to a testing pressure, and directing the pressurized portion of hydraulic fluid to the connection to test a pressure rating of the connection.

Claims (25)

1 . A system, comprising:

a hydraulic connector comprising a hydraulic lock;

a hydraulic supply line and a hydraulic outlet line fluidly connected to the hydraulic lock;

a test port in fluid communication with a connection surface of the hydraulic connector;

an intensifier fluidly connected to the test port;

a pressure transducer fluidly connected between the intensifier and the test port; and

a manifold, comprising:

a test supply line fluidly connecting the hydraulic supply line to a test port of the intensifier,

a test control valve positioned along the test supply line,

a bleed supply line fluidly connecting the hydraulic supply line to a bleed port of the intensifier,

a bleed control valve positioned along the bleed supply line,

a bleed outlet line fluidly connecting the test control valve to the hydraulic outlet line, and

a one way valve positioned along the bleed outlet line, and

wherein the manifold fluidly connects the intensifier to the hydraulic supply line and the hydraulic outlet line.

2 . The system of claim 1 , wherein the bleed outlet line also fluidly connects the bleed control valve to the hydraulic outlet line.

3 . The system of claim 1 , further comprising:

a master control unit, wherein the master control unit is in communication with the bleed control valve and the test control valve; and

a valve operable to control flow from a hydraulic fluid source to the hydraulic supply line, wherein the master control unit is in communication with the valve.

4 . The system of claim 1 , a valve control package comprising at least one valve fluidly connected to the hydraulic supply line and the hydraulic outlet line.

5 . The system of claim 1 , wherein the hydraulic connector is hydraulically locked onto a fracturing tree.

6 . The system of claim 1 , wherein the intensifier and the manifold are coupled to the hydraulic connector.

7 . The system of claim 1 , wherein the intensifier and the manifold are positioned a distance away from the hydraulic connector, outside of a redzone boundary.

8 . The system of claim 1 , wherein the intensifier is coupled to the hydraulic connector and the manifold is positioned a distance away from the hydraulic connector, outside of a redzone boundary.

9 . The system of claim 1 , further comprising one or more seals positioned around the connection surface.

10 . The system of claim 1 , wherein the test port is in fluid communication with the connection surface via a test port flow path formed through the hydraulic connector.

Assignments (5)
RELEASE OF PATENT SECURITY AGREEMENT RECORDED AT R/F 064193/0810 Recorded Aug 9, 2024
From: DNB BANK ASA, NEW YORK BRANCH
To: FMC TECHNOLOGIES, INC.; SCHILLING ROBOTICS, LLC
Reel/Frame 068525/0717 →
RELEASE OF PATENT SECURITY AGREEMENT RECORDED AT R/F 064193/0870 Recorded Aug 9, 2024
From: JPMORGAN CHASE BANK, N.A.
To: FMC TECHNOLOGIES, INC.; SCHILLING ROBOTICS, LLC
Reel/Frame 068527/0127 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 12, 2024
From: COOK, JAMES
To: FMC TECHNOLOGIES, INC.
Reel/Frame 066109/0024 →
SECURITY INTEREST Recorded Jul 3, 2023
From: FMC TECHNOLOGIES, INC.; SCHILLING ROBOTICS, LLC
To: DNB BANK ASA, NEW YORK BRANCH, AS ADMINISTRATIVE AGENT
Reel/Frame 064193/0810 →
SECURITY INTEREST Recorded Jul 3, 2023
From: FMC TECHNOLOGIES, INC.; SCHILLING ROBOTICS, LLC
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 064193/0870 →
Continuity (1)
Related Publication 20240247997A1 · Jul 25, 2024
References Cited (2)
US 20160033352A1 · Adolfse · 2016 [cited by examiner]
US 20210062617A1 · Pillai · 2021 [cited by examiner]